Author: Tom Kerrigan
Date: 16:37:16 01/20/00
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On January 20, 2000 at 19:29:54, John Merlino wrote: >What are the preferred methods of testing an engine's speed? Are there some >common positions that you all use? As far as I can figure, there are only two >factors that can be tested: nodes per second (general test) and "accuracy" >(testing the algorithm for its correctness with regards to certain complicated >positions). > >While I'm interested in both of these, I'm MORE interested in the positions that >you use for determining nodes per second (and, perhaps, the pruning techniques >that are used to speed up the depth search). > >Any help will be useful to this curious bystander.... > >jm I like to use the Bratko-Kopec (sp?) positions. They are old, but everybody has them, and they seem to be as good as any other positions for testing speed and search efficiency. As for accuracy of the search, there is a well known test suite named Win At Chess. It has 300 positions. If you score over 250, you can be fairly sure that your search isn't missing anything serious. -Tom
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